Abstract: An information processing system may comprise an electronic circuit comprising a primary circuit board of the information processing system, at least two power supplies providing electrical energy to the electronic circuit according to a power sharing ratio, with each power supply being cooled by a set of fans, and a controller, coupled to the set of power supplies and the set of fans. The controller detects a failure of one of the fans and adjusts the power sharing ratio from a default ratio to an adjusted ratio in response to detecting the failure of the one fan.

Abstract: A signal suitable for signaling a computer system to reduce power consumption is generated from a plurality of power supplies. The signal is asserted when at least one of the power supplies of the plurality of power supplies signals impairment, and at least one of the power supplies of the plurality of power supplies signals that the power supply is supplying current above a threshold level.

Abstract: Examples relate to a grid switch adapted for use with a power supply, wherein the grid switch selects an operational power grid from first and second power grids if one of power grids has failed, and selects between the first and second grids based on a policy if both the first and second power grids are operational.

Abstract: Examples relate to a grid switch adapted for use with a power supply, wherein the grid switch selects an operational power grid from first and second power grids if one of power grids has failed, and selects between the first and second grids based on a policy if both the first and second power grids are operational.

Abstract: A signal suitable for signaling a computer system to reduce power consumption is generated from a plurality of power supplies. The signal is asserted when at least one of the power supplies of the plurality of power supplies signals impairment, and at least one of the power supplies of the plurality of power supplies signals that the power supply is supplying current above a threshold level.

Abstract: The present invention provides a multiprocessor system and method in which power can be withheld from a core and inter-processor communications ports of a first processor while power continues to be supplied to a second processor.

Abstract: The present invention provides a multiprocessor system and method in which power can be withheld from a core and inter-processor communications ports of a first processor while power continues to be supplied to a second processor.

Abstract: An apparatus for supervising input voltages of a multi-rail power supply includes a corresponding voltage detector unit electrically connected to each rail for ascertaining values of the input voltages of each rail. An output of each voltage detector unit is electrically connected at a wired-or node. A pull-up resistor is connected between the wired-or node and a power supply for pulling the voltage level of the wired-or node high. Circuitry generates a power-good signal responsive to the voltage of the wired-or node being greater than a predetermined threshold voltage.